Type-writing machine.



A. T. BROWN. TYPE-'lwRTING MACHINE.

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WITNESSES:

TTHIVEY A. T. BROWN. TYPE WRITING MACHINE. APPLICATION FILED APR. 25, 1906.

'Patented Aphz, 1912.

3 SHEETS-SHEET 2.l

A. T. BROWN. TYPE WRITING MACHINE. APPLICATION FILED APR. 25, 1906.

Patented Apr. 23, 191,2.l

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WITNESSES:

paper'feed devices.

' Fig... 3` but 'in released asti .chinese-nd it has for'its ALEXANDER- T. BROWN, 0F SYRACUSE, NEW YORK.

TYPE-WRITIN G- MACHIN E.

To al? fwzolm t may concern.'

Be it lfznown that I, ALEXANDER T. BROWN, citizen of the United States, and resident of Syracuse, in the 'county' of Onondaga and State of New York, have invented certain new and useful Improvements in T e- Writing Machines, of which-.the following is a specification. My invention relates to typewriting-maprincipal object to provide improved paper feeding devices for such machines. A

My invention consists incertain features of construction and combinations and arrangements of parts, all of which will be particularly pointed out in the claims;

In the accompanying drawings, is a front elevation of the upper part of'a typewriting Amachine having my lnvention 'embodied therein. Fig. 2 `is a fragmentary frontview, partly in section, of some of the vertical sectional view showing the parts in `normal position. Fig. ,4: is a View similar to showing the paper feed devices position. Fig. -is a right-hand end view of the platen frame with the paper feed devices in position. Fig. 6' is a view similar to Fig. Shut with the platen frame removed. Fig. 7 is an isometric view of the carriage with the platen2 frame removed.' Fig. 8 1s a fragmentary isometric viewV showing the manner in ngers are mounted.. Fi carriage and paper feed vices as seen from the bottom. Fig. l0 is a isometric view of the .carriage and platen rame, the platen ywhich the paper 9 is 'aviewof the frame being removed from the carriage and theplaten and most of the paper feed -de- Y vicesbeing omitted@ Fig..1 1 is a view of prisesa'top plate 1 4ards 2 that sufpport a stationary carriage the paper apron. and'parts mounted thereon', detach'ed'from the machine, the parts being shown as they wonid appear when'` looking in about the direction oi A'the arrow' a -in rige., A Most of the features of 'my invention are 'applicable to typewriting machines enerally, but some of them are more particularlyv designed for use on a front-strike machine and l' have accordingly shown my invention applied to a machine of this sort.

The machineshown in the drawings comfro'm which rise standrailB having ormed in its oppositej edges Specification of Letters Patent. i Application mea April 25, 190e.

Figure l Fig. 3 is a front tore'ar baolzward and I -maklng erasures, the frame 1n Fatented Apr. 23, 1912. Serial No. 313,603.

race-Ways in which run anti-friction halls or rollers 4 that cooperate with rails 5 and forming parts of the carriage or carriage truck. The rail 3 is inclined downward to` ward the front of the machine and the body of the carriage is correspondingly inclined as indicated in the drawing. Said carriage has end pieces 7 which are secured to t e ralls 5 and 6 by screwsjS. The platen 9 has a shaft l0 that is jouinaled in a platen frame, .the construction of which is best shown. in Fig. 10. Said platen frame com,u prises a right-hand end piece 11. and a. lefthand end piece l2 in which end pieces the shaft 10 is journaled at 13. Said end pieces are connected together by a frame rod le that extends across the machine ahove the laten and a lower frame rod 15 situzited veneath the platen, said frame rods being rigidly mounted in suitable hubs inthe end pieces 1l and projecting from the lower arm 16 th wardly and right from the free end thereof a pivot pin' 17 that is adapted to rest in a notch 18 formedl in the Iupper edge of a block 19 that is secn'red by screws 20 to the inner face of the right-hand end piece 7. The left-hand end piece 12 of the platen frame has pfojecting. toward the left pin 21 that is adapted to be seated in a hole 22 (Fig. 7) in the left-hand end piece 7 vof the carriage, and the end piece 12 also has projecting therefrom a pin 23 that is adapt` ed to play up" and down in a slot 2a in the inner face of the .end frame is adapted to be ringe by inserting the hole 22 and slot 24 respectively and dropnA ping the ypin 17 into the notch 18. When the platen frame is in position the platen. shaft in the end pieces 7 .for the purpose. the platen'frameis inA position. on chine,"said frame is adapted rto 'ti upward, for the ourpose t .is operl tion rocking ahoutthe pivot pinsy 17 and '21y huh thereof an at curves 'upwardly and rearwhen and its motion being .limited by the 'pinf the frame from' the hole 22 and the slot 24.

that has projecting' toward the u 10 normally rests in notches 25l formed* loe them l2. The end piece 11 has.

therefrom la pivot I piece 7. The platen. l

mounted on thecar-. pins 21 in the'l lmachinel by liftingfthefpin l. 11o I The devices for controlling the paper comprise a paper apron 26 that lies beneath the platen between said platen'and the lower frame rod 15 of the platen frame. The rear edge of Vthis paper apron is out away to accommodate one or incre rear paper feed rollers 27 which are rotatably mounted on a rod l supported by the paper apron 26, the rearwardly projecting parts Q9 of which are folded about said rod as indicated, for en ample, in li'ig. 4. There may, of course, he only one of thesev rear feed rollers if desired7 hut l prefer to en iploy a plurality of short rollers strung along the rod 28 shown, for example, in i), four such rollers beingv shown in the present ease. The forward edge 30 of the paper apron stands a little below the writing' line, which in the present. machine is on the front face of the platen. Said forward edge or forward edge portion of the paper apron is adapted to Contact with the paper and thus constitutes a platen plate which keeps the paper smooth and straight just below the line of writing. l prefer to have this forward part of the pa- ',per apron Carry a lplaten scale and also a.

carriage scale. One or both of these scales may be engraved on the apron itself, but l prefer to make said scales on the front face of ascale plate 3l that is secured to the for ward part. of the apron 26 by any suitable means, as for example, by rivets 32. The seele plate 3l has its upper part 33. bent ,over the extreme upper edge 30 of the,l paper apron toward the platen, thus bringing the front face of this part of the scale plate into a plane approx'imateljT at right anglesto the line sight of the operator. This part of the scale plate has the platen scale engraved thereon.v The arriagesealc is engraved on the lower part B4 of the scale plate which is lient toward the front of the machine, as shown for example in Fig. 4, thus bringing the forward surfa ce of this lower partof 'the scalo plato into a, plane approximately at right ang; to 1Lhe line of sight of the open ator.v The middle part of the scale plate between the u p per part 52,3 andthe lower part ill/l. is inclined downward toward the haelt of the machine so as to brine' the lower edge of the seale plate snhstantiallydirectly under the upper parl thereof. notwithstanding the fact that the lower part ofthe seale plat-e is inclined upward and to vard the haelt of the machine. A. fixed' pointer 39 (Fig. 3),

mounted in any suitable manner, eoperates with the Carriage scale 3l.

yThe paper apron 26 has inountedthereon a forward feed roller or forward feed rollers ln the present instance l have shown four short feed rollers though it will be obvious that the number and length of said rollers may he varied. The feed rollers are-mounted on ar rod 3F which in turn is mounted on a plate 37 thatjis secured by :nceaeos rivets S8 to the under side o f the pape-r apron. ,The forward edge of said plate 37 is ont away as shown at 4 0 to receive the feed rollers 35 and between each two consecutive rolle-rs there is also a deeper cutaway lll, thus leaving two forwardly projecting arms lf2 for-eaehroller 35, one at each end of the roller. The forward ends of these arms 42 are bent around the rod. 36, thus retaining said rod in position. Suitable openings are formed in the paper apron Q6, through which the rollers 35 project vfar enough to touch the platen or the paper thereon.I l prefer to bend the forward part of the plate Si' a little out-from the apron QG, as shown in Figs. and 4. lfheeonstruction is such that each of therollers may be adjusted toward or from theplaten by bending the arms 42 corresponding to that particular roller.

The rollers 35 project but slightly through the paper apron 26 and it is desira ble, therefore, that said rollers be adjusted to project to about the right extent. This ad justlnent becomes more important, however, in view of the fact that parts mounted on the paper apron Contact with the paper at three points, namely, at the rear feed rollers 27, at t-he forward edge 30 of the paper apron and at the forward feed rollers 35. lf'said forward feed rollers project la little too far through the paper apron they will lift the forward edge 30 which serves as a. platen plate oil' the paper, whereas if said rollers ldo not project far enough through the paper apron the-pressure of the spring:

47 will come almost entirely on the forward edge 30 o f he paper apron and there will be out little pressure on the rollers. It is desirable that niost of the. pressure be onl the rollers 35 leather than on the platen plate. It`

tliereforeloecolnes important to adjust the position of these rollers with some degree .of nicety. The means which I have devised for this purpose, namely, the shaping of the for ward part of the plate 37 in. such fashion that the rollers may be adjusted hy Vbending this plate. or the 'arins projecting from it toward the front of the machine, iselfeetive and extren'iely simple.

v The rear part 43 of the plate 37 is bent off approXiinately at right angles to the apron Q6, this part of said plate thus constituting a flange that lies in front of the fra-me rod l5 and prevents motion of the paper apron toward the back of the machine. Motion of said paper apron toward the front of the machineis prevented by another angle plate 44 that is fastened by rivets l5 to the -paper apron 26 and that extends downward back'of the bar 15 and parallel to the flange 43.

angle plate 44C, whichst-raddle t-he frame bal" The paper apron thnshas parts, namely, the flange 4:3 and the.,-

is prevented by collars 46 on the rod 155 said I collars engaging the ends of the p arts'elA and 44. -These eollarsmay be secured;jin position-by anysuitable means', as by'f'set' screws 46'; "j 1 I'have' provided spring means'..aeting 'oi1` thevpaper apron betweenthe--rear f eed roll- 'forward' i feed -rollefrsf'I and pron and iced rollers. toward Said sprin'g' means-maybe of:v

- his'.

ShQWIlmFigL-2- Thisv spring lies on top of the' bar l' adis bowed up at its ends which I press upward against" the underside ofthe .apron 26. The springis held against displace- ',ment-towardthe front o'r back by the flange 43l and tlie plate 44 and displacement of the .spring -endwise is prevented by 'small lugs' .orears 48 struck' down from the paper apron .It will'.bepercetigvedthatI have provided qa Heating' paper apron,-not positively held 4inany Aparticular position and capable of c eived that by placing one of the feed roll'' ers nearer to the spring 4T than the other, one lof said feed rollers may be caused to.

. press n iore forcibly against the 'platen than the other. .I prefer to cause the -rearffeed -rollers 27 to press more forcibly against the apron and on.` which are mounted bot i iof these parts being controlled by a single platen than thev forward feed rolleirs` 35 and I have accordingly placed said reaifeed rollers closer to the spring than't-lie forward feed-rollers.

So far as I am awa-rait is broadlynew to mount two feed rollers, or two sets offed rollers, such a's rear and Aforward-feed rollers, 'on the same rigid member and to ress both sets of feed rollers toward'thelp aten by lthe same spring means ap; lied tois'aid member between the 4sets of ro 1ers. Lt will also be perceived that the platen plate consists merely of' the forward part of this member and that vthe sam'e spring that presses the feed rollers toward theiplaten also holds the platen plate up to the' platen.

:'This entire arran ement of al single rigid membenwhich in itself4 constitutes a plaper the rearzand the forward feed rollers, the', platen plate and the platen and carriage scales, all

is extremely ciiiit and-simple i of the sort with "whihL-I am; a'cqua'inted l: f These vles lmay `be 4adjustedgto the right or left hand to bring' the 'carriag'escale 84 lnto proper relation with the pointer 39;Iby 'Sadjustingthe position. of the paper apron 'a's a whole.-.. This 4is done by' moving the'eollars` 46 'and'.secri'n them in .their adjusted posltionsbytightenlng th'ezset screws 46.

.I I have provided' a releasing device for the paper feedv deviceswhipch releasing device is 'adaptedeto -move the paper apronand all of the parts mounted thereon bodily' away from the platen against the tension of the spring 47 to'the position shown in-.Fi 4. As has been explained above, `the' platen frame and the paperlfeeddevices are readily 'detachable from .the carriage. It sometimes.

happens that the machine is used for heavy workl Where a plurality.' of sheets' of paper are in usewith carbon4 sheets in between and necessary to interrupt this 'work in order, for example, to write a letter ortelegram. In such a case, if the operatoris provided with an' eXtra platenpvandplateii v i frame, the first platen may. be quickly rel moved from the' machine with the vwork init J'and a new platen frame be inserted and .the letter may be Written without clisturb.

inglthe papers in the irs't'platen frame'. In machines 1n which the 4platen frame is detachable and'which 'have been used in 'this Way heretofore, the paper releasing devices were mounted on the platen frame and when roo said platen frame was laid down on the ta'- ble or handledwliile it was detached from the machine, these paper releasing devices have 'beenlinadvertently operated with the result th tv the papers in the detached platen frame have become disarranged. In order` to obviate this' diiculty and for' other reasons I prefer to mount the releasing' devices 1'10 platen frame is removed from themachme o/n the carriage truck so that when the the releasing devicesA will remain in position 1 on the'maehine. l .l Y

The releasing dev ices -for the paper feed devices comprise a handleO, said handle consisting .'of an armrigidly mounted on the en'd of a roclt'shaftlyonernd of which just belowI the forward e'd'ge 'of tlielcarriage passes th'rou'gh'and hasa bearing in one ofr the end pieffes-.' The froclrshaft 5 1v lies' rail 5 and it is journaled in two brackets-52v that are secured by screws 53 to a siib'stlanf' tially vertical part of 'the frontaceV 'oft said rail. Two arms 55 are rigidly mounted on 'the shaft 51 and project toward-the froiitf'fofl .the machine' beneath the folded.' 'rearedg'e rearwardly bent l'lang'le L56 of" the fp As best shown Fig. theshaft 51' videdjwitha returning'spring 57 lthat is coiled about the shaft and is fastened at one end to the sha-ft and at the other end to the end piece 7. The spring 57 tends to move the ',handle 50 toward the back o'f the -machine and the motion of said handle under the impulse of the spring is limitedby `the carriage'rail '5, llVhen the handle 50 is pulled tolwai'dthel front of the machine "to- Ward the position indicated in Figfl, the forward ends of the arms 55 move downaboutthe. forward of the paper, apron as a pivot,'until .the folded part 29 of the paperl apron contacts with the upper edges of the arms 55.. Asthe -paper apron is now in contactwith'tbe arm 55 at two points,

one below said arm and the other above it,

saidapron'can'n'o" longer turn about its for Ward edge as a pivot but is moved bodily l downward away from the platen, its motion beingr substantially'in the nature of a turningT about theaxis of the shaft 5l'. The result. is that the entire papcrapron and all of the1 parts? mounted thereon are'nioved bodily away from tlie'platcn asushown. in]

C.Fig."4, the spring 47 being straghtenedout on top of the-bar 15. The feed'rolls are moved away from the-[platen successively,

the rear roll-first and then the forward roll vand-they arcmoved substantially the'same distance from'the platen.

- Froman inspection of Fig. 3 it `\vi.ll be evident that if the platen frame be tilted b'ack about the pivot pins 17 and 2l runtil the pin '23 reaches the top of the slot 24C, the

flange 56 will be moved out from under vthe ends'ofthe arms. 55 and-.the releasing de viceivillbe disconnected from or inop'crznY tiveyon the paper'feed devices. FurthermoreJ when the platen lframe is removed from the'niiichinc the paper feed devices are entirely disconnected from their releasing devices so that there is yn'zrct-ically no danger of said paper feed deyices' being disturbed by the handling of the pla-ten frame;

moreover in case the user rif-the machine is provided with a plurality of platens the one releasingv device ,serves for all :of said Iuhaveprovided a pair .of paper fingers mounted.' on the upper=framerod 14.0f the platen frame for eoperation with the pa.-

" -perf-especially with the margins thereof 'l above the platenscale.33. Each of said paper fingers comprises an up and down' extending strip 58 of sheet meta-l, the

middle of which is curved to conform to the 'of the scale -plateBL a'sleeve'62 slidably mounted on the frame rod. i4., AEach of thea-rms 61- is bent and curvedfro'm theistrip 58 toward the end of the platem as shown inthe drawings,'so that. said' 'arms do not interfere with the edges ofthe paper,' the margins of which lie under the strip 58. Each of the sleeves said arm being bent off back of the sleeve parallel with the ba'r t14' forming a yoke bar fof the spring beingr exerted to pressthe paf per'fingertoward the platen. In Order to prevent the sleeve 62 'from turning under the impulse of the spring 6G, the bar'l is formed with a longitudinal groove 68 into whichl the sleeve is-b'ent, thus forming'a spline. The construction is such that the sleeve and paper finger may be slid longipaper fingers to coperate'lproperly With sheets of paperof different widths7 but the sleeve cannot turnen-the bar. l 1

Each' of the paper fingers' comprises 'an arm 70 projecting 'from the strip 58 toward the middle of the platen; 'somewhat inclined upward and it is bent to conform to the curvature of the platen. The arms' 7() extend out over; the written part ofthe paperand as these arms have been constructed heretofore they have interfered with the visibleness of the written matter. In order to obviate this objection to these arms, while retainingall of the advantages thereof, I have cut out the l`sheet met-al of which the arms are made, leaving the arms ln the particular instance her 'lion/'11,' the arm 7 O is integral with the stlp 58 and it consists only of two slender strips of -metal openings 72 and 7 3 through which thewritfj Without unovi paper lingers. t

ways than thathereshown. The paper ngers may platen by hand to the position Ashown in .62 is'sinewhat elongated-and the arm 61 is pivot'edon the outer en d of said sleeve,

tudinally of the bar 14 in orderzto cause the' of th skeleton' formshown in tli-` drawings.-

connectedat the end of the arm and alsoV 'connected near the middle of the arm-by a '1 'slender tie 71. Almost the'entire middle- -partof thearm is eut away leavingtwo 63, the inner end of which is bent toward th'e front'of the machine as shown at' ,65,1

the part- 65 having anfopening through. Which-the sleeve 62 passes so that theA arm.

is pivoted onthe sleeve at tw'oponts spaced apart. The ends of the sleeve 'areffupset.to4A prevent longitudinal displacement of the arm pivoted thereon. Aspring 66, coiledv about the sleeve 62, isl connected at one endv to said sleeve' and at. its opposite end 67 is bent up under the yoke bar 63,' the'te'nsion This arm is ing maybe read. tTlie skeleton framework of which thisarniv ldoi'isists is so 'slender that." .the written -m` tter' ban vordinarily'be' read either. the' paper o1? v'the' WilF- be obvious that/these skeleton arms might be\constructedl in other said arm consisting of two connected at their outer ends and also conthe position shown in Fig. 4, the scale late -`3l presses forward on .Vaper lingers and lifts said paper fingers slightly ott of the platen as indicated in .sind Fig. 4.

the strips 58 o the Various changes may be made in the details of construction and arrangement without departing from 'my invention.

YWhat I claim as new and` desire to secure by Letters Patent, is a In a typcwriting machine, the combination of aroller platen, a paper finger pressed against said platen and consisting of a band of sheet metal extending up and down and curved to t the curvature of the platen, and an arm formed integral with said band and extending at an angle there from toward the middle of the machine,

narrow strips nected at an intermediate point by a cross strip, all of said strips being integral With` one another and with said band and said -strips being so narrow as to permit of reading through said projectin arm.

Q. In a typewrit-ing machine, the combinaj tion of paper feed devices and releasing means for /said paper feed' devices, said Ypaper feed ydevices and said releasing means being operatively disconnectible the one from the other'. c

3. In a. typewriting machine, the combination cfa carriage truck,a platen frame mounted on lsaid truck and movable o-n said truck, paper feed devices mounted on said platen frame', and releasing devices for said paper feed devices mounted 0n said truck.

4. In a typewriting machine, the combination of a carriage truck, a platen frame detachably mounted on said truck, paper feed devices carried by said platenframe, and releasing devices for said paper feed devices mounted on said truck, the construction being such that when said platen frame is .detached from said truck, said paper feed devices are disconnected from their releasing devices.

5. In a typewriting machine, the ,combination of a carriage truck, a platen frame I mounted on said truck and movable on said truck, paper feed devices mounted on said platen frame, and releasing devices for said paper feed devices mounted on said truck and operative on said feed devices when said platen Aframe isA-in one position and inopera tive on` said feed devices when said` platen frame A1s m another positlonf 6. Ina typewriting machine, the combi-y nation of a platen, va platen frame, a member` having a part straddling a part of said platen frame, spring" means pressing said member toward the platen, and paper'feed devices mounted on said member on either on said paper apron to the rear'of said straddling part, a feed roll mounted on said paper a ron forward of said straddling part, an spring means pressing said paper apron toward the platen.

Inv a typewriting machine, the combinationof a platen, a platen frame having al rod or bar extending longitudinally thereof,

a paper apron lying between said platen Vand said bar and having projections that straddle said bar, a spring compressed be tween said apron and said bar, paper feed devices mounted on said apron forward of said bar', and paper feed devices mountedon said apron back of said bar. A

9. In a typewriting machine, the combination of a carriage; a paper apron mounted onv said carriage and carrying a scale; a fixed pointer cooperating With said scale; and means for adjusting the paper apron relatively to the carriage in order to bringv the scale into proper relation with theV pointer.

.10. In a typewriting machine, the combination with the platen, of a paper apron; a

plate mounted on said paper apron; a feedv roller mounted on said plate and rojecting through said paper apron, said pl) adapted to be bent-'in Order to feed roller.

' 11. In a typewriting machine, the combination with the platen, of a member carrying a feed roll at its rear part and a platen plate at its forward part; and a feed rolle:` mounted on said member intermediate said rear feed roller and said platen plate by sheet metal arms that can be bent to adjust said feed roller. l

12. In atypewriting machine, the combination with the platen, of a paper apron,

the forward part of which 1s adapted to serveas a platen plate; a feed roller mounted on the rear part of said paper aCpron; andl roller projecting an intermediate feed through said paper apron and mounted thereon by means of sheet metal. arms that can be bentfto adjust said 'feed roller..

13. In'ja lQypewriti'ng machine, teombination withjthe platen,`3pf a member' carryv aper feed devices;

ing' forward and rear spring means pressingsaid Vmember toward said platen; andajreleas-"i'lg device comprising a rock shaftfhaviiig aifms extending beneath the rear edge-foffsid,member and .adapted to Contact with anzther part of said part j of-said platen frame,- a feed roll mounted' ate being f. adjust theV im matinee member from above, whereby when said shaft is rocked said member is moved bodily away from said platen. y

14. n a typewriting machine, the combination of a carriage truck; a platen frame detaehably mounted on said carriage truck; a platen carried by said platen frame; paper 'feed devices carried by said platen frame; spring means pressing said paper feed devices toward said platen; and a releasingA device comprising a rocking member mounted on said truck and having arms adapted When said rocking member is rocked to engage said paper feed devices and move them away from the platen, the construction be* ing such that when said platen frame is removed from the machine said paper feed devices are out of operative. relation to their releasing device.

l5. In atypewriting machine,l the combination With the platen, of a paper apron, the forward part of which serves as av platen plate; feed rolls mounted on said paper apron; spring means pressing said paper apron toward the platen; a paper finger;

and a paper feed releasing; device adapted to move said paper apron away from 'the platen, said paper apron moving said paper finger away from the platen.

16.1n a visible Writing machine, a rotatable platen, front and rear feed rolls below the axis of the platen, a fra-me in which they are mounted, spring actingmeans ,serving normally to maintain the rolls in contact with the platen and means for bodily depressingthe roll carrying frame to thereby move both the rear and front rolls successively substantially corresponding distances away from their normal points of Contact with the face of the platen.

Signed at Syracuse, in the county of'Onondaga and State of New York this 28rd day of April A. D. 1906.

TWitnesses S. DAVIS, R. ARoNsoN. 

